Shaft-hanger.



PATENTED MAY 23, 1905.

v o. o. Woon.

SHAFT HANGBR. APPLICATION FILED JUNE Ill-3y 1903.

Patented A'May 23, 1905.

' PATENT OFFICE.

CHARLES O. WOOD, OE OHAMBEESBURG, PENNSYLVANIA.

SHAFT-HANGER.

SPECIFICATION forming part of Letters Patent No. 790,609, dated Maly23,1905.v

Application filed June 18,1903. Serial No. 162,076.

To a/Z whom it may concern/r Be it known that I, CHARLES O. WOOD, ofChambersburg, in the county ofFranklin, and in the Stateof Pennsylvania,have invented a certain new and useful Improvement in Shaft- Hangers;and I do hereby declare that the following is a full, clear, and exactdescription thereof, reference being had to the accompanying drawings,in which-v Figure 1 is a side elevation of a shaft-hanger embodying myinvention. Fig. 2 is a vertical cross-section of ,the lower portion ofthe same. Fig. 3 is a horizontal cross-section of one of the arms of theframe, and Fig. 4 is a bottom view of the bearing-box.

The object of my invention has been to provide a shaft hanger whichshall have, among others, the qualities of being easily adjustable, toaccommodate variations in the relative positions of the shafting andhanger, and which shall be simple and cheap; and to such ends myinvention consists in the shaft-hanger hereinafter specified.

In carrying my invention into practice I provide a base A, such basebeing adapted to be fastened to a portion of the building, such as thejoists, and for such purpose having slots elongated in the direction ofthe length of the base, so that bolts can be passed through such slotsand secured to the rafters, the Slots permittingthehangerto beshifted onthe rafter without changing the position of the bolts. From the basedescend arms a, which are connected by a cross-arm a at a point abovetheir lower ends. A cap B is secured by. bolts D to the free ends ofthearms a, and the bearing-box C is supported in the space inclosed by thearms A and a and the cap B. The cap B has formed in it a Vertical socketb, in which is an internal screw-thread. A preferably hollow screw orplunger E is mounted in the socket In and supports the lower side of the'bearing-box upon its upper end. The bolt E bears against a surface cupon the under side of the bearing-box, which surface is countersunk oris surrounded with a rib to prevent the escape of the box fromengagement with the ends of the bolt E, and which surface is curvedtransversely to the end of the box, so that the box can rock upon theend of the screw or plunger E with the shaft to accommodate itself tothe latter. By making the screw E hollow it can be made of the necessarydiameter to give it strength with the use of' a comparatively smallamount of metal. For the purpose of turning the screw E its lower end ismade polygonal in crosssection, so that it may be engaged by a wrench. Aset-screw b is threaded into the wall of the socket b to fasten theScrew E in the desired position. The arm a is provided with a socketa9', which is similar to and preferably in line with the socket b, and ascrew or plunger F, similar to the screw or plunger E, is mounted, inthe socket a2 and engages a surface c on the upper side of thebearing-box, which surface is similar to the surface c, beforementioned. The surfaces c and c are struck Y from a common center, sothat, in edect, they form, with the screws or plungers E and F, aball-and-socket joint. The screws or plungers E andl F, having a broadVbearing on the bearing-box, support themselves, so to speak, on suchbox, so that there is little or no tendency for them to tilt laterallyor get out of line vwith each other, as is the case with slender orround-pointed screws, and they thus form a very rigid support for thebox.

In practice I find, a most rigid hanger to result from my construction.

In order to provide for the lateral adjustment of the bearing-boxrelative to the hanger, the arms a are provided withvertically-elongated slots @-3, which slots are approximately on a levelwith the bearing-box. The said slots are larger at theirV inner endsthan at their outer ends to .form a seat or shoulder that is adapted tosupport a nut Gr, through which is threaded a bolt H, that bears uponthe side of the bearing-box. A nut-lock I is preferably provided uponthe screw II to secure the bolt in any desired position.

The mode of operating my bearing-box will be apparent from the foregoingdescription.

It will be seen that the bearing-box, while strongly and firmlysupported, can rock vertically longitudinally of the shafting owing tothe curvature of the surfaces c and c', that it can rock horizontallylongitudinally of the shaft, and that it canbe bodily adjusted either upor down or laterally, so that it is capable of accommodati ng itself toany position of the shaft. Itlwill be seen that lateral adjustment ofthe bearing-box can be effected without disturbing the vertical screwsor plungers.

Having thus described my invention, what I claim is# 1. In ashaft-hanger', the combination of an open frame, upper and lowervertical screws threaded in said frame, a bearing-box supported betweensaid screws and having on its upper and lovvei` sides cylindricalsurfaces whose axes are transverse to the axis of the bearing, saidsurfaces being engaged by said screws and being surrounded by flanges,said engaging ends of said screws being fiat and of sufficient width toprevent rotation of said bearing-box on the shaft, and horizontal screwsin the frame whose` ends engage the sides of the box.

2. In a shaft-hanger, the combination of an open frame, upper and lowervertical screws threaded in said frame, a bearing-box supported betweensaid screws and having on its upper and lower sides cylindrical surfaceswhose axes are transverse to the axis of the bearing, said surfacesbeing` engaged by said screws and being surrounded by flanges, saidengaging ends of said screws being hat and of suiiicient width toprevent rotation of said bearing-box on the shaft,and horizontal screwsin the frame, whose ends engage the sides of the box, said horizontalscrews being adjustably mounted in vertical slots in the frame.

In testimony that I claim the foregoing I have hereunto set my hand.

CH ARLES O.- \VOOD. fitnessesz W. H. FISHER, G..HnRBnRT WOOD.

